Armstrong Air BCE7E Series Manual de instrucciones de instalación - Página 8

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4.
Place a wet rag against piping plate and around the
suction line connection. The wet rag must be in place
to guard against damage to the paint.
5.
With the wet rag in place, position a field provided
elbow fitting to the air handler's suction line and line
set. Start nitrogen flow before brazing.
6.
After the procedure is completed then remove the wet
rag.
7.
Place wet rag against piping plate and around the
liquid line connection. Position liquid line elbow to air
handler's suction line and to line set. Start nitrogen
flow and begin brazing both connections and after
procedure is completed then remove both wet rags.
8.
Refer to instructions provided with outdoor unit for leak
testing, evacuating and charging procedures.
9.
Install access panel.
ABOVE
ALWAYS RUN AN OVERFLOW DRAIN LINE. IF NOT POSSIBLE TO
FINISHED
ROUTE OVERFLOW DRAIN LINE, INSTALL LOW VOLTAGE
SPACE?
OVERFLOW
COMPRESSOR PER INSTRUCTIONS.
COMPACT OVERFLOW SWITCH WITH 3/4" FEMALE SLIP INLET
NO
AND MALE ADAPTER, TWO PART DESIGN FOR USE WHERE
OBSTRUCTIONS PREVENT DIRECT THREADING
OVERFLOW
YES
NOTE — WHEN A AIR HANDLER IS LOCATED
ABOVE A FINISHED SPACE THE SECONDARY
DRAIN PAN MUST HAVE A LARGER FOOTPRINT
THAN THE AIR HANDLER.
SECONDARY
DRAIN PAN
WHEN A COIL IS LOCATED ABOVE A FINISHED SPACE, A
3/4" (19.1MM) SECONDARY DRAIN LINE MUST BE:
CONNECTED TO SECONDARY DRAIN PAN
OR
CONNECTED TO THE OVERFLOW DRAIN OUTLET OF
THE AIR HANDLER DRAIN PAN.
TRAPS MUST BE DEEP ENOUGH TO OFFSET MAXIMUM STATIC DIFFERENCES —
GENERALLY, TWO INCHES (51MM).
1
P-TRAP 49P66 REQUIRES A LARGER INSTALLATION SPACE THAN THE J-TRAP 91P90.
2
PIPE NIPPLE PROVIDED IN BAG ASSEMBLY - SCH 80, 3/4" I. D. X 5" - 34K7401 (1): CUT THE PIPE IN HALF AND USE IT TO ROUTE THE MA IN DRAIN.
Page 8 of 19
OVERFLOW DRAIN LINE
SWITCH
KIT.
WIRE
CAT #
X3169
AIR HANDLER DRAIN PAN
DRAIN
MAIN
DRAIN
Figure 7. Typical Main and Overflow Drain

Installing the Condensate Drain

Main Drain
Connect the main drain and route downward to drain line
or sump. Do not connect drain to a closed waste system.
See Figure 7 for typical drain trap configuration.
Overflow Drain
It is recommended that the overflow drain is connected to
an overflow drain line for all units. If overflow drain is not
connected, it must be plugged with provided cap.
For downflow orientation, the overflow drain MUST be
connected and routed to a overflow drain line. See Figure
8 for main and overflow drain locations based on coil
orientation.
KIT
TO
SHUT
DOWN
CLEAN OUT
PRESS IN
(DO NOT GLUE)
MAIN
DRAIN
CUT TO
REQUIRED
LENGTH
PROVIDED
2
PIPE NIPPLE
SIDE VIEW
FOR NEGATIVE PRESSURE COILS (BLOWER
AFTER COIL) TRAPS ARE REQUIRED ON ALL
DRAIN LINES CONNECTED TO COIL.
Issue 1813
VENT MUST EXTEND
ABOVE HEIGHT OF
COIL DRAIN PAN BY
TWO INCHES (51MM)
VENT
1" X 3/4" X 3/4"
REDUCING
TEE WITH
PLUG
1
P-TRAP
49P66, J-TRAP #
91P90 OR ANY
PVC SCH 40 P- OR
J-TRAP 3/4"
2"
(51MM)
TRAP DEPTH
TO APPROVED
DRAIN
DRAIN LINE SHOULD
SLOPE A MINIMUM OF
ONE
INCH
PER
10
FEET (25MM PER 3
METERS)
507838-01